6 th PHISCC workshop: Galaxy velocity fields
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1 6 th PHISCC workshop: Galaxy velocity fields Previous PHISCC workshops 2009 June 6: Groningen (after Panoramic Radio Astronomy) 2009 Nov 16-19: Bunker Bay, WA 2010 May 2-6: Arniston, RSA 2011 Feb 2-4: Perth Zoo 2011 June 14-18: Kloster Seeon, Germany 2012 Jan 30-Feb 2: Cape Town
2 Pre-PHISCC RFI workshop (17-18 June) RFI is IMPORTANT and will be one of main limitations and analysis hurdles for ALL HI pathfinder surveys Data shown from Parkes, ATCA, VLA, Arecibo, WSRT all demonstrate this SPO/SKA site surveys so far unhelpful for characterising satellite RFI Good automated flaggers now exist (AOFLAGGER) Much more could be done (adaptive filtering and nulling) Summary at this meeting by Lisa Harvey-Smith
3 Pathfinder instrument updates ASKAP (Tim Shimwell) - MkI (x6) and MkII (x18-24) continues (Mk II Tsys measurement awaited!) - Beamshapes measured at different frequencies with Parkes-Patriot interferometer MeerKAT (Claude Carignan) - KAT7 commissioning - Large science programs (or 21) APERTIF (Tom Oosterloo) - Ongoing; worrying about call for proposals and science data reduction FAST (Ming Zhu) - Big hole in ground; towers going up! - Nice 3D simulation!
4 SKA update and discussion SKA activities taking off (Minh Huynh)! - SKA1 baseline design - Science assessment workshops SKA1 baseline discussion (Tom Oosterloo, Minh, LSS, notes by Lisa) - Worried about SKA1 configuration (need to produce sensitivity v resolution plots) - Missing user model (e.g. how many hrs per project on SKA1-mid?) - No mention of RFI (except in glossary!) - Archive?
5 Pathfinder science updates KAT7 - Antlia Cluster (Kelley Hess) - Great image of NGC 3109/Antlia dwarf (Claude Carignan) FAST (Ming Zhu) - Wide-ranging HI science plans JVLA-CHILES (Kelley Hess) - Good detections to z=0.2! - RFI challenging on short baselines! - Proceeding to deep survey z=0.4
6 Velocity fields at kpc scales - I LVHIS and friends (Baerbel Koribalski) - THINGS is best thing to happen in HI astronomy in last decade (Tom Oosterloo) - WISE NIR-HI star formation laws (Tom Jarrett) - Beam smearing is important (Ed Elson) Early-type galaxies (ETGs) - Only 20% are dispersion-dominated (Lisa Fogerty) - ATLAS3D (Paolo Serra) - 40% of non-cluster ETGs have HI (in a disk or ring)
7 Velocity fields at kpc scales - II HALOGAS (Thijs van der Hulst) - Asymmetries important in velocity field analysis - Need to clearly define problem we are analysing VIVA (Aeree Chung) - Ram pressure stripping history results in multiple asymmetries
8 Velocity fields at kpc scales - III Large optical velocity field surveys - SAMI and a galactic wind (Lisa Fogerty) - SAMI velocity functions (Geraint Lewis) - Much more accuracy than single fibre (revolution, not evolution) - CALIFA bars (Kristine Spekkens) - 20% of galaxies have kinematics different than expected from morphology - WIYN/WiFeS (Moses Mogotsi) - SINGG-SUNGG sample Bright future for joint IFU and HI surveys (Paolo Serra)
9 Velocity fields at Mpc scales TULLY-FISHER & FUNDAMENTAL PLANE 2MTF (Tao Hong) - Great 2MASS-HI TF relation! 6dFGS (Chris Springob) - Large residual bulk flow 340 km/s Look no inclinations! (Danail Obreschkow) - Can recover TF relation with no optical inclinations - Better than bad inclinations Look no detections! (Scott Meyer) - Can stack TF relation with or without inclinations Look no optical data! (Danail Obreschkow) - HI TF relation has high scatter unfortunately
10 Environment matters DENSITY-MORPHOLOGY/GAS RELATIONS - Does it extend all the way to poor groups? SDSS/ALFALFA suggests yes! (Kelley Hess) - Ram Pressure stripping probably primary cause of evolution in high density regions (Aeree Chung) - Even ATLAS3D ETGs show negative correlation M HI /L K v density (Paolo Serra) ONE OF THE MOST IMPORTANT AREAS THAT FUTURE HI SURVEYS CAN ADDRESS
11 Onward to higher redshifts z=0 to 0.1 stacking at Parkes (Jacinta Delhaize) - Accurate cosmic HI mass density - No evolution z=0.1 direct detections at Arecibo (Laura Hoppmann) - HIMF looks similar to local Universe z=0.1 to 0.2 stacking at WSRT (Jonghwan Rhee) - No evolution; errors going down! Redshift errors important (Natasha Maddox) HI absorbers - Local galaxies (James Allison, Sarah Reeves) - Blind surveys are the way to go (Sarah, Stephen Curran)
12 Technical Successes HIPASS2 - New streams seen (Ivy Wong) OPTICALLY-MOTIVATED SOURCE-FINDING - New generation of non-blind surveys? (Attila Popping) SOFIA - Next-gen source-finding pipeline (Tobias Westmeier) KINEMATIC PIPELINES - Conceptual pipeline (Kristine Spekkens) - (1) diskfit - (2) TiRiFiC automation (Peter Kamphuis) - (3) ROTCUR algorithms and automation (Se-Heon Oh)
13 Challenges RFI (again) - JVLA (Kelley Hess) - Arecibo (Laura Hoppmann) - GBT (Stephen Curran) - SKA sites (Oleg Smirnov) Data Processing - Are our kinematic models accurate enough? (Thijs van der Hulst) - Will our software be fast and accurate enough? (Tom Oosterloo) - Do we understand our analysis techniques and sidelobes will deep stacking work? (Oleg Smirnov) With apologies to Dr Strangelove
14 PHISCC committee (Wed night) OUTLINE OF DISCUSSIONS (SYD, NL, RUTGERS, GRONINGEN, UCT) Pathfinder discussions: - ASKAP early science program - APERTIF strawman surveys - FAST call for proposals - MeerKAT/SKA1-mid transition Future (ongoing) priorities: (a) RFI; (b) data Add galaxy simulator member to PHISCC Coordination SKA1 sensitivity v resolution simulations Invite attendance by SDP specialists at future workshops Next meeting 2014 March in Dwingeloo, NL (after 3D2014) Elected Marc Verheijen as new PHISCC chair
15 Thanks! Sponsors (CAASTRO/AAO/CSIRO/USydney) Pre-workshop RFI meeting (Lisa Harvey-Smith and Tim Shimwell) PHISCC Organisers (Elaine Sadler and Kylie Williams)! See you in Dwingeloo in 2014! Enjoy Hamilton Island! Feeding, Fireworks and Feedback
16 Thanks! Sponsors (CAASTRO/AAO/CSIRO/USydney) Pre-workshop RFI meeting (Lisa Harvey-Smith and Tim Shimwell) PHISCC Organisers (Elaine Sadler and Kylie Williams)! See you in Dwingeloo in 2014! Enjoy Hamilton Island! Feeding, Fireworks and Feedback
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